Re: [PATCH 3/3] alpha: determine tininess after rounding in the FP emulation

[Matt Turner]

On Fri, Sep 4, 2026 at 2:13 AM Magnus Lindholm <linmag7@xxxxxxxxx> wrote:
>
> Hi everyone,
>
> Adding Michael, Yoshinori, Rich and Adrian directly, although this
> is an alpha series, patch 3/3 also touches the shared soft-fp code in
> include/math-emu/ (op-common.h, soft-fp.h), which your architectures
> build against too (confirmed by grepping arch/{powerpc,sh,sparc} for
> includes of those headers; parisc/m68k/mips/x86 have their own
> separate math-emu and aren't touched).
> The new _FP_TININESS_AFTER_ROUNDING macro defaults to 0, so the
> intent is no behavioural change on your side. The new guard it adds
> in op-common.h is a regular runtime `if` rather than `#if` though, so
> it still gets compiled against your macro instantiations even if it
> should dead-code-eliminate at -O.
> No action needed if it builds fine for you, just flagging since it's
> tagged for stable. Let us know if it causes any problems, or feel
> free to ack if you're happy with it.
> I've reviewed and tested patch 3/3 on alpha already (Reviewed-by/
> Tested-by posted).
>
> Thanks,
> Magnus

Hello all,

Could a maintainer of this code find time to have a look?

We can take it through the alpha tree, but we'd certainly prefer some
review first.

Thanks,
Matt